CN105484689A - Horizontal well liner completion well entering tool - Google Patents
Horizontal well liner completion well entering tool Download PDFInfo
- Publication number
- CN105484689A CN105484689A CN201510877993.5A CN201510877993A CN105484689A CN 105484689 A CN105484689 A CN 105484689A CN 201510877993 A CN201510877993 A CN 201510877993A CN 105484689 A CN105484689 A CN 105484689A
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- China
- Prior art keywords
- tool
- thread
- giving
- hand thread
- liner
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
Abstract
The invention discloses a horizontal well liner completion well entering tool. The horizontal well liner completion well entering tool comprises a releasing tool, an insertion tool and an insertion waiting tool. The releasing tool is connected to the upper end of the insertion tool through a drill rod, the insertion tool is combined at the upper end of the insertion waiting tool through a sealing structure, and meanwhile the insertion waiting tool and the releasing tool are connected through a liner and a casing string. Circulation of the bottom of the liner can be achieved, and jamming release can be achieved through the measures such as liner bottom circulation and acid soaking once blocking or jamming of a drilling tool occurs.
Description
Technical field
The present invention relates to the manufacturing technology field of underground operation tool, exactly relate to a kind of liner-type well completion and enter well tool, for realizing long horizontal sections bushing pipe bottom cycle.
Background technology
Along with the development of drilling technology, high-inclination horizontal well gets more and more.In recent years, high-inclination horizontal well is mainly used in exploitation low permeability fractured stratum and crosses crack, due to High angle horizontal segment can tiltedly wear, it is flat that to wear payzone longer, considerably increase the bare area of oil gas, thus significantly can improve oil and gas production.But high-inclination horizontal well it is also proposed severe challenge to deep-well Holes of Complicated Wells well-completing process.Liner-type well completion technology is owing to having the many advantages such as reservoir protec-tion, formation damage, cost simple to operate be low; horizontal well selective completion uses liner-type well completion technology to get more and more both at home and abroad at present, and liner-type well completion has become one of important completion mode of horizontal well.Also do not carry out systematic research for deep-well, Holes of Complicated Wells liner-type well completion technology both at home and abroad at present, deep-well, Holes of Complicated Wells, high angle hole liner-type well completion technology not yet obtain important breakthrough.
Publication number is CN2310148, publication date is that the Chinese patent literature on March 10th, 1999 discloses a kind of Multi-function completedwell limb for horizontal well, primarily of hydraulic releasing tool, completion tubular column and washover pipe composition, wherein completion tubular column is primarily of compositions such as sleeve pipe, hanging packer, centralizer, slotted liner, sealing shroud and guide shoes; Washover pipe is primarily of cleaning hose and sealing intubate composition.This Multifunction complete well tube once enters down when constructing, and while realizing slotted liner completion, can rinse and acidizing treatment well, reduces oil layer pollution, and improve oil well productivity, hydraulic releasing tool is given up reliably, easy construction.
But with the prior art that above-mentioned patent document is representative, still there is following technical barrier: guarantee to send bushing pipe to put in place smoothly under high-inclination horizontal well section, the card that is hampered can set up circulation scouring pipe shoe and annular space, and dredging minimizing annular space resistance becomes important problem urgently to be resolved hurrily.
Summary of the invention
The present invention is intended to for the defect existing for above-mentioned prior art and deficiency, and provide a kind of horizontal well liner-type well completion to enter well tool, the present invention can realize bushing pipe bottom cycle, once be hampered or bit freezing can adopt bushing pipe bottom cycle, bubble acid etc. measure unfreezing.
The present invention realizes by adopting following technical proposals:
A kind of horizontal well liner-type well completion enters well tool, it is characterized in that comprising releasing tool, insertion tool and time plugs in instrument, described releasing tool is connected to insertion tool upper end by drilling rod, insertion tool is combined in wait by hermetically-sealed construction plugs in instrument upper end, with time plug in instrument and be connected by bushing pipe and bunch tube with releasing tool.
Described releasing tool is provided with dual bearing structure, and upper bearing (metal) is arranged on and promotes short circuit lower end, and lower bearing is arranged on insertion tool upper end.
Described releasing tool is primarily of lifting short circuit, sand cap, tie-back sleeve, give up left-hand thread male joint and left-hand thread female joint of giving up is formed, lifting short circuit lower end is provided with upper bearing (metal), upper bearing (metal) lower end is provided with upper bearing (metal) underlay, promote short circuit top to be connected with drill rod thread, promote short circuit to be connected with sand cap screw, promote short circuit lower internal thread to be connected with left-hand thread male joint trapezoidal thread of giving up, left-hand thread female joint upper external thread of giving up is threaded with tie-back sleeve, left-hand thread female joint internal thread of giving up is connected with the left-handed trapezoidal thread of function thread bush, left-hand thread male joint of giving up is connected with function thread bush keyway, left-hand thread male joint bottom of giving up is threaded with turning to male, turn to male and turn to female to be provided with hermetically-sealed construction, to give up left-hand thread male joint bottom and turn between female top and be provided with lower bearing, left-hand thread female joint bottom of giving up two public to be threaded with bottom bushing pipe by variable buckle is short, female bottom is turned to be connected with bottom drill rod thread by variable buckle male joint.
Insertion tool adjusts dark intubate and target seeker to form by sealing, and sealing adjusts dark intubate top to be threaded with variable buckle male joint, and bottom is threaded with target seeker.
Wait the instrument of inserting by pin and box sub, insert seat and insert in seat seal and form, pin and box sub top is threaded with bushing pipe, pin and box sub and insert between seat and be provided with hermetically-sealed construction, inserts seat inside and adjusts dark intubate seal combination by insert in seat sealing and seal.
Compared with prior art, the beneficial effect that reaches of the present invention is as follows:
1, bushing pipe bottom cycle can be realized.This tool tubular column uses the interior drilling rod that inserts to insert in time socket, and turn on pump circulation time drilling fluid is returned out through guide shoe by interior insertion drilling rod, achieves the circulation of drilling fluid of full well section, simultaneously without slip design, can circulate by turn on pump, do not limit by circulation pump pressure when slacking off.
2, can realize without the need at point of neutralization back-off.Owing to not sitting extension, certain suspending weight is all hung with and outer suspending weight is not too large inside and outside releasing tool, design size space is little, horizontal segment fixed point is given up more difficult, therefore this instrument does not adopt hydraulic releasing mode, and select ripe back-off to give up technology, back-off is given up and is partly employed thrust bearing, feeding drilling tool being transferred the height friction rotational resistance load transfer being carried in back-off part is low friction rotational resistance load, send into drilling tool and liner portion give up back-off time strictly can find the point of neutralization, improve back-off reliability, fixing thick left-hand thread is changed be set to can the thick left-hand thread of axial activity, send into drilling tool and liner portion give up back-off whole process in the back-off that can realize without axial load rotate, avoiding giving up, it is abnormal to occur.
3, send into interior insertion drilling rod when drilling tool back-off rotates not rotate.Cylindrical roller thrust bearing has been set up between releasing tool and interior insertion drilling rod, in the process that back-off rotates, rotation torque can not be delivered on the interior insertion drilling rod of below, ensure that interior insertion drilling rod can not rotate, and interior insertion drilling rod can trip out with the trip-out sending into drilling tool.
4, complete in little design size space.
5, can tieback.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein:
Fig. 1 is releasing tool structural representation of the present invention;
Fig. 2 is insertion tool structural representation of the present invention;
Fig. 3 is that time of the present invention inserts tool construction schematic diagram.
Mark in figure:
Promote short circuit 1, sand cap 2, tie-back sleeve 3, left-hand thread male joint 4 of giving up, upper bearing (metal) 5, upper bearing (metal) underlay 6, left-hand thread female joint 7 of giving up, function thread bush 8, lower bearing 9, turn to male 10, turn to female 11, variable buckle male joint 12, sealing adjust dark intubate 14, target seeker 15, pin and box sub 16, insert seat 17, insert sealing 18 in seat.
Detailed description of the invention
Embodiment 1
As the present invention one better embodiment, it comprises releasing tool, insertion tool and time and plugs in instrument, described releasing tool is connected to insertion tool upper end by drilling rod, insertion tool is combined in wait by hermetically-sealed construction plugs in instrument upper end, with time plug in instrument and be connected by bushing pipe and bunch tube with releasing tool.Described releasing tool is provided with dual bearing structure, and upper bearing (metal) is arranged on and promotes short circuit lower end, and lower bearing is arranged on insertion tool upper end.
Embodiment 2
As preferred forms of the present invention, with reference to Figure of description 1-3, it mainly comprises releasing tool, insertion tool, time plug in instrument, releasing tool is by promoting short circuit 1, sand cap 2, tie-back sleeve 3, left-hand thread male joint 4 of giving up is formed with left-hand thread female joint 7 of giving up, lifting short circuit 1 lower end is provided with upper bearing (metal) 5, upper bearing (metal) 5 lower end is provided with upper bearing (metal) underlay 6, promote short circuit 1 top to be connected with drill rod thread, promote short circuit 1 to be connected with sand cap 2 screw, promote short circuit 1 lower internal thread to be connected with left-hand thread male joint 4 trapezoidal thread of giving up, left-hand thread female joint 7 upper external thread of giving up is threaded with tie-back sleeve 3, left-hand thread female joint 7 internal thread of giving up is connected with the left-handed trapezoidal thread of function thread bush 8, left-hand thread male joint 4 of giving up is connected with function thread bush 8 keyway, left-hand thread male joint 4 bottom of giving up is threaded with turning to male 10, turn to male 10 and turn to female 11 to be provided with hermetically-sealed construction, to give up left-hand thread male joint 4 bottom and turn between female 11 top and be provided with lower bearing 9, left-hand thread female joint 7 bottom of giving up is threaded with bottom bushing pipe by variable buckle short two public 12, female 11 bottom is turned to be connected with bottom drill rod thread by variable buckle male joint 12, insertion tool adjusts dark intubate 14 and target seeker 15 to form by sealing, and sealing adjusts dark intubate 14 top to be threaded with variable buckle male joint 12, and bottom is threaded with target seeker 15, wait the instrument of inserting to be made up of sealing 18 in pin and box sub 16, insertion seat 17 and insertion seat, pin and box sub 16 top is threaded with bushing pipe, inner and insertion seat 17 is provided with hermetically-sealed construction, inserts seat 17 inside and adjusts dark intubate 14 seal combination by the interior sealing 18 of insertion seat with sealing.
Fashionable under tubing string, first enter to wait down and plug in instrument and bushing pipe, then under enter insertion tool and drilling rod, finally by releasing tool successively with insertion tool with wait plug in instrument and be connected.When constructing, mud arrives shaft bottom by drilling rod inside, sets up circulation.When constructing complete, reversely rotate promote short circuit 1 be separated with left-hand thread female joint 7 of giving up, realize horizontal well liner-type well completion special enter well tool be separated with bushing pipe, trip out shaft bottom.
Claims (5)
1. a horizontal well liner-type well completion enters well tool, it is characterized in that comprising releasing tool, insertion tool and time plugs in instrument, described releasing tool is connected to insertion tool upper end by drilling rod, insertion tool is combined in wait by hermetically-sealed construction plugs in instrument upper end, with time plug in instrument and be connected by bushing pipe and bunch tube with releasing tool.
2. horizontal well liner-type well completion according to claim 1 enters well tool, it is characterized in that: described releasing tool is provided with dual bearing structure, and upper bearing (metal) (5) is arranged on and promotes short circuit (1) lower end, and lower bearing (9) is arranged on insertion tool upper end.
3. horizontal well liner-type well completion according to claim 1 enters well tool, it is characterized in that: described releasing tool is primarily of lifting short circuit (1), sand cap (2), tie-back sleeve (3), give up left-hand thread male joint (4) and left-hand thread female joint (7) of giving up is formed, lifting short circuit (1) lower end is provided with upper bearing (metal) (5), upper bearing (metal) (5) lower end is provided with upper bearing (metal) underlay (6), promote short circuit (1) top to be connected with drill rod thread, promote short circuit (1) to be connected with sand cap (2) screw, promote short circuit (1) lower internal thread to be connected with left-hand thread male joint (4) trapezoidal thread of giving up, left-hand thread female joint (7) upper external thread of giving up is threaded with tie-back sleeve (3), left-hand thread female joint (7) internal thread of giving up is connected with function thread bush (8) left-handed trapezoidal thread, left-hand thread male joint (4) of giving up is connected with function thread bush (8) keyway, left-hand thread male joint (4) bottom of giving up is threaded with turning to male (10), turn to male (10) and turn to female (11) to be provided with hermetically-sealed construction, to give up left-hand thread male joint (4) bottom and turn between female (11) top and be provided with lower bearing (9), left-hand thread female joint (7) bottom of giving up two public to be threaded with bottom bushing pipe by variable buckle is short, female (11) bottom is turned to be connected with bottom drill rod thread by variable buckle male joint (12).
4. horizontal well liner-type well completion according to claim 3 enters well tool, it is characterized in that: insertion tool adjusts dark intubate (14) and target seeker (15) to form by sealing, sealing adjusts dark intubate (14) top to be threaded with variable buckle male joint (12), and bottom is threaded with target seeker (15).
5. horizontal well liner-type well completion according to claim 4 enters well tool, it is characterized in that: wait the instrument of inserting and be made up of sealing (18) in pin and box sub (16), insertion seat (17) and insertion seat, pin and box sub (16) top is threaded with bushing pipe, be provided with hermetically-sealed construction between pin and box sub (16) and insertion seat (17), insert seat (17) inside and adjust dark intubate (14) seal combination by inserting the interior sealing (18) of seat with sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877993.5A CN105484689B (en) | 2015-12-04 | 2015-12-04 | A kind of horizontal well liner-type well completion enters well instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877993.5A CN105484689B (en) | 2015-12-04 | 2015-12-04 | A kind of horizontal well liner-type well completion enters well instrument |
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| CN105484689A true CN105484689A (en) | 2016-04-13 |
| CN105484689B CN105484689B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510877993.5A Active CN105484689B (en) | 2015-12-04 | 2015-12-04 | A kind of horizontal well liner-type well completion enters well instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209276A (en) * | 2018-10-11 | 2019-01-15 | 中核通辽铀业有限责任公司 | A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310148Y (en) * | 1997-11-25 | 1999-03-10 | 胜利石油管理局采油工艺研究院 | Multi-function completedwell limb for horizontal well |
| US20040118613A1 (en) * | 1994-10-14 | 2004-06-24 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| CN2846712Y (en) * | 2005-11-16 | 2006-12-13 | 辽河石油勘探局 | Back-off bearing anti-drop device of tail tube suspension device neutral point |
| CN201045292Y (en) * | 2007-06-05 | 2008-04-09 | 新疆蓝海石油工程技术有限责任公司 | Circulation composite hanger for sieve tube well completion |
| CN203296727U (en) * | 2013-06-05 | 2013-11-20 | 中国石油集团川庆钻探工程有限公司 | Mechanical-hydraulic double-action release rotary tail pipe hanger |
| CN105041267A (en) * | 2015-08-24 | 2015-11-11 | 山东普瑞思德石油技术有限公司 | Third-section acid pickling integrated well completion pipe string and method |
-
2015
- 2015-12-04 CN CN201510877993.5A patent/CN105484689B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040118613A1 (en) * | 1994-10-14 | 2004-06-24 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| CN2310148Y (en) * | 1997-11-25 | 1999-03-10 | 胜利石油管理局采油工艺研究院 | Multi-function completedwell limb for horizontal well |
| CN2846712Y (en) * | 2005-11-16 | 2006-12-13 | 辽河石油勘探局 | Back-off bearing anti-drop device of tail tube suspension device neutral point |
| CN201045292Y (en) * | 2007-06-05 | 2008-04-09 | 新疆蓝海石油工程技术有限责任公司 | Circulation composite hanger for sieve tube well completion |
| CN203296727U (en) * | 2013-06-05 | 2013-11-20 | 中国石油集团川庆钻探工程有限公司 | Mechanical-hydraulic double-action release rotary tail pipe hanger |
| CN105041267A (en) * | 2015-08-24 | 2015-11-11 | 山东普瑞思德石油技术有限公司 | Third-section acid pickling integrated well completion pipe string and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209276A (en) * | 2018-10-11 | 2019-01-15 | 中核通辽铀业有限责任公司 | A kind of method for repairing and mending of In-situ Leaching Uranium Mine production borehole damage |
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| CN105484689B (en) | 2018-02-16 |
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Effective date of registration: 20200918 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
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